Xerostomia is also known as dry mouth. Dry mouth is one of the major discomforts seen in the oral cavity and can be compromised by dietary intake and quality of life. Chewing gum plays a role in saliva substitutes and is soft and sticky while chewing. The aim is to evaluate the impact of chewing gum on xerostomia by conducting a systematic review. A systematic review was selected based on a literature search using the search engine database by appropriate MeSH terms and further followed by Cochrane database bias assessment were done by PRISMA guidelines. Four randomised controlled studies were included. Among those four studies, the pvalue is significant on the effectiveness of chewing gum in relieving pain and has increased saliva secretion in the mouth. Chewing gum has an advantage in saliva substitutes, relieving pain and discomfort in the oral cavity. While chewing the chewing gum, it has an adequate secretion of saliva to wet the oral cavity or mouth. Hence, there is a significant pain reduction in the use of chewing gum to relieve or alleviate in xerostomia patients.

Keywords : Chewing gum, xerostomia, saliva, dry mouth, pain.